Packaging container

Abstract

To provide a packaging container capable of inhibiting contents in a container body from moving to a middle tray.SOLUTION: The packaging container comprises a container body 10, a middle tray 20, and a lid body 30. The container body 10 has a body peripheral wall part 11 with a body step part 111, and a body flange part 12. The middle tray 20 has a middle tray peripheral wall part 21, and a middle tray skirt part 24. The lid body 30 has a top face part 34, and a lid body peripheral wall part 31. The middle tray peripheral wall part 21 has a middle tray step part 211. The lid body 30 has an inward stepwise portion 32 corresponding to the shape of a middle tray top part 23 and the middle tray step part 211 continuously from a lid body top part 33. In a state where the middle tray skirt part 24 is placed on the body step part 111 and the lid body 30 is fit in the container body 10, the stepwise portion 32 is in contact with the middle tray top part 23 from above.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a packaging container. [Background technology]

[0002] For example, in packaging containers for noodles or rice bowls sold at convenience stores and supermarkets, an inner plate may be used in addition to the container body and lid to separate and store different ingredients. Using such a packaging container, for example, for noodles, soup can be stored in the container body and noodles and ingredients can be stored in the inner plate, and for rice bowls, polished rice can be stored in the container body and ingredients can be stored in the inner plate. An example of this type of packaging container is disclosed in JP 2015-145285 A (Patent Document 1).

[0003] In the packaging container of Patent Document 1, when the inner plate 200 is placed on the container body 300 and the lid body 100 is attached thereon, the container body 300, the inner plate 200, and the lid body 100 are combined. The inner plate 200 has an inner plate hanging portion 260, and when placed on the placement surface 340 of the container body 300, the inner plate hanging portion 260 covers the surface of the main body vertical wall portion 350 of the container body 300. This makes it possible to prevent fingers, dust, etc. from entering the container body 300 when the lid is opened.

[0004] However, in Patent Document 1, the flat portion 250 of the inner plate 200 and the mounting surface 340 of the container body 300 abut against each other from above and below, and the inner plate hanging portion 260 simply covers the main body vertical wall portion 350 from the outside. Therefore, if the contents inside the container body 1 are liquids such as soup, there is a risk that the liquid may leak out from the engagement point and enter the inner plate storage portion 231. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2015-145285 A Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, it is desirable to realize a packaging container that can prevent the contents in the container body from moving into the storage portion of the inner tray. [Means for solving the problem]

[0007] In view of the above, a characteristic configuration of a packaging container is a packaging container including a container body, a lid body that is fitted to the container body, and an inner plate that is arranged between the container body and the lid body, wherein the container body has a body peripheral wall portion having a body step portion, and a body flange portion that extends outward from an upper portion of the body peripheral wall portion, the inner plate has a middle plate peripheral wall portion, and a middle plate skirt portion that extends downward from a middle plate top portion provided at an upper portion of the middle plate peripheral wall portion to form a space portion between the middle plate peripheral wall portion, and the lid body is The container has a top surface and a lid body peripheral wall portion extending downward from a lid body top portion provided on the periphery of the top surface, the middle dish peripheral wall portion having a middle dish step portion formed with a width different from the middle dish top, the lid body has an inward stepped portion continuing from the lid body top portion that corresponds to the shape of the middle dish top and the middle dish step portion, and is configured so that when the middle dish skirt portion is placed on the main body step portion and the lid body is fitted to the container body, the stepped portion abuts the middle dish top from above.

[0008] According to this configuration, when the middle plate skirt part is placed on the main body step part and the lid body is fitted to the container body, the stepped part abuts on the middle plate top from above, so that the middle plate skirt part is pressed against the main body step part from above. Therefore, even if the packaging container is tilted, the contents in the container body are blocked at the abutment point between the main body step part and the middle plate skirt part, and remain in the space between the middle plate peripheral wall part and the middle plate skirt part. Therefore, it is possible to prevent the contents in the container body from leaking out of the container body. In addition, when the lid body is fitted to the container body, the stepped part having a shape corresponding to the shape of the middle plate top and the middle plate step part abuts on the middle plate top from above over a relatively wide range, so that even if the contents in the container body leak out of the container body, it is difficult for them to reach the storage part of the middle plate. In this way, according to this configuration, it is possible to prevent the contents in the container body from moving to the storage part of the middle plate.

[0009] Here, it is preferable that the stepped portion is formed to a size corresponding to the bottom surface portion of the container body, and that a ventilation portion that serves as a passageway for air is formed in the stepped portion.

[0010] According to this configuration, the stepped portion is formed to a size corresponding to the bottom surface of the container body, so that when multiple packaging containers are stacked, the container body of the other packaging container can be appropriately placed at an appropriate position on the top surface of the lid. Also, it is possible to prevent the stacked packaging containers from being misaligned. Furthermore, since the stepped portion is formed with a vent, for example, when steam or the like discharged from the lid reaches the space between the top surface and the bottom surface of the container body, it can be released to the outside through the vent.

[0011] It is also preferable that a linear rib extending vertically is formed around the entire periphery of the peripheral wall of the cover.

[0012] According to this configuration, the peripheral wall of the lid can be appropriately reinforced, and therefore deformation of the peripheral wall of the lid and the inner plate skirt portion can be suppressed.

[0013] In addition, it is preferable that the inner plate has an extending edge portion extending outward from the lower end of the inner plate skirt portion, and the lid body has an annular bottom portion formed in a ring shape at the lower part of the lid body peripheral wall portion, and that when the lid body is fitted to the container body, the extending edge portion is sandwiched between the body step portion and the annular bottom portion.

[0014] According to this configuration, by sandwiching the extended edge between the main body step and the annular bottom when the lid is fitted to the container body, it is possible to improve the adhesion between the main body step and the inner plate skirt portion, thereby effectively preventing the contents in the container body from leaking out of the container body. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is an exploded perspective view of a packaging container according to an embodiment. [Diagram 2] A perspective view of a packaging container [Diagram 3] Plan view of the lid [Figure 4] Top view of inner plate [Diagram 5] Plan view of the container body [Figure 6] Bottom view of the container body [Figure 7] Partial cross-sectional view of a packaging container [Figure 8] Cross-section of a two-tiered packaging container DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The packaging container 1 will be described below with reference to the drawings. As shown in Fig. 1, the packaging container 1 mainly comprises a container body 10, a lid body 30 fitted to the container body 10, and an inner plate 20 disposed between the container body 10 and the lid body 30.

[0017] The packaging container 1 is formed by sheet molding. The container body 10, the inner plate 20, and the lid body 30 that constitute the packaging container 1 are each formed by sheet molding.

[0018] The container body 10, the inner plate 20, and the lid 30 can be formed by thermoforming (e.g., vacuum forming, pressure forming, vacuum pressure forming, hot plate forming, etc.) a synthetic resin sheet having a thickness of, for example, 0.1 mm to 3 mm (preferably 0.2 mm to 1.5 mm). The sheet thicknesses of the container body 10, the inner plate 20, and the lid 30 may differ from one another.

[0019] The synthetic resin sheets constituting the container body 10, the inner plate 20, and the lid 30 may be, for example, thermoplastic resin sheets such as polyolefin-based resin sheets, polystyrene-based resin sheets, and polyester-based resin sheets. These may be foamed sheets or non-foamed sheets. Laminated sheets may also be used, and examples of the laminated sheets that may be used include film-laminated foamed sheets obtained by laminating a film on a foamed sheet, co-extrusion laminate sheets, and extrusion laminate sheets.

[0020] The container body 10 and the inner plate 20 may be colored, for example, black or white, or may be colorless and transparent. The lid body 30 of this embodiment is formed to be colorless and transparent. By making the lid body 30 colorless and transparent, the contents can be easily viewed from the outside. At least one of the container body 10, the inner plate 20, and the lid body 30 may be provided with a design such as a pattern.

[0021] 1. Container body The container body 10 contains a first food ingredient. Examples of the first food ingredient include white rice and noodle soup. As shown in Figs. 1 and 2, the container body 10 has a bottom surface portion 9, a main body peripheral wall portion 11, a main body fitting portion 14, and a main body flange portion 12. These are integrally formed. The bottom surface portion 9 and the main body peripheral wall portion 11 form a storage space that is open at the top.

[0022] In this embodiment, the bottom surface portion 9 is formed in a circular shape in a plan view. An annular groove 6 recessed downward is formed around the entire circumference of the peripheral edge of the bottom surface portion 9. A raised portion 6a extending along the radial direction is formed in the annular groove 6. A plurality of (four in this example) raised portions 6a are provided at equal intervals in the circumferential direction. As described above, the container body 10 is formed by sheet molding, and when viewed from the outside of the container body 10, a portion corresponding to the annular groove 6 protrudes downward, and a portion corresponding to the raised portion 6a is recessed upward. The portion recessed upward on the back side of the raised portion 6a functions as an air passage, and is hereinafter referred to as the main body ventilation portion 4. As shown in FIG. 6, the main body ventilation portion 4 is formed over the entire radial area of ​​the downward protruding portion on the back side of the annular groove 6. In other words, the main body ventilation portion 4 is provided so as to communicate the inner space of the downward protruding portion on the back side of the annular groove 6 with the outer space. The main body ventilation section 4 serves as a passageway for allowing steam and the like discharged from the lid body 30 to escape to the outside when, for example, the packaging containers 1 are stacked.

[0023] The main body peripheral wall portion 11 extends upward from the periphery of the bottom surface portion 9. In this embodiment, the main body peripheral wall portion 11 extends upward from the outer edge of the annular groove 6 formed on the periphery of the bottom surface portion 9. The main body peripheral wall portion 11 is formed so as to incline outward as it extends upward. The main body peripheral wall portion 11 is formed in a circular shape in a plan view. As shown in Figures 1 and 2, below the main body peripheral wall portion 11, a plurality of main body peripheral wall portion recesses 13 are provided around the entire circumference.

[0024] In this embodiment, the main body peripheral wall portion 11 has a main body step portion 111. As shown in FIG. 1 and FIG. 5, the main body step portion 111 is provided over the entire circumference above the main body peripheral wall portion 11. As shown in FIG. 7, the main body step portion 111 in this embodiment is formed as a two-step step portion, and has a main body first step portion 111a and a main body second step portion 111b. The main body first step portion 111a on the lower step side extends outward along a horizontal plane. The main body second step portion 111b on the upper step side is provided above and outward from the main body first step portion 111a, and in this example, extends outward while being slightly inclined upward. The main body first step portion 111a and the main body second step portion 111b are formed to have different widths. In this embodiment, the main body first step portion 111a is formed to be wider than the main body second step portion 111b.

[0025] The body fitting portion 14 is provided above the body step portion 111. The body fitting portion 14 has an inner wall surface around the entire periphery, and this inner wall surface fits into the lid fitting portion 38 of the lid 30. It is preferable that the body fitting portion 14 has a portion that is slightly inclined inward as it extends upward, at least in a portion in the up-down direction.

[0026] The body flange portion 12 extends outward from an upper portion of the body fitting portion 14. The body flange portion 12 is disposed along the lid flange portion 302 of the lid body 30 when the lid body 30 is fitted to the container body 10.

[0027] 2. Medium plate The inner plate 20 accommodates a second food ingredient different from the first food ingredient. Examples of the second food ingredient include noodles and toppings. The inner plate 20 is placed on the container body 10. As shown in FIG. 1, the inner plate 20 has an inner plate bottom surface portion 19, an inner plate peripheral wall portion 21, an inner plate skirt portion 24, and an extended edge portion 25. These are integrally formed. The inner plate bottom surface portion 19 and the inner plate peripheral wall portion 21 form an accommodation space that is open at the top.

[0028] In this embodiment, the middle plate bottom surface portion 19 is formed in a circular shape in a plan view. The middle plate peripheral wall portion 21 extends upward from the periphery of the middle plate bottom surface portion 19. The middle plate peripheral wall portion 21 is formed to be slightly inclined outward as it extends upward. In this embodiment, a plurality of first vertical ribs 8 are formed around the entire periphery, extending vertically from near the periphery of the middle plate bottom surface portion 19 to the middle plate peripheral wall portion 21. This improves the strength of the middle plate bottom surface portion 19 and the middle plate peripheral wall portion 21.

[0029] The middle plate peripheral wall portion 21 has a middle plate top portion 23 provided at its uppermost portion, and a middle plate step portion 211 provided below the middle plate top portion 23. The middle plate top portion 23 is formed continuously from the upper end portion of the middle plate peripheral wall portion 21 outward along the horizontal plane. The middle plate step portion 211 is provided at the upper portion of the middle plate peripheral wall portion 21 (at least above half in the vertical direction). In this embodiment, the middle plate step portion 211 is provided directly below the middle plate top portion 23 with a height difference that is sufficient to make the step recognizable. As a result, the middle plate step portion 211 is provided integrally with the middle plate top portion 23 and is provided so as to step down from the middle plate top portion 23 toward the inside.

[0030] The middle plate step portion 211 is formed to have a different width than the middle plate top portion 23. In this embodiment, as shown in Fig. 4, the middle plate step portion 211 is formed to be narrower than the middle plate top portion 23. The width of the middle plate step portion 211 can be, for example, 30% to 95% of the width of the middle plate top portion 23, or may be 50% to 75%.

[0031] The middle plate skirt portion 24 extends downward from the upper portion (middle plate top portion 23) of the middle plate peripheral wall portion 21. In this embodiment, the middle plate skirt portion 24 is formed to be slightly inclined outward as it goes downward. The middle plate peripheral wall portion 21 and the middle plate skirt portion 24, which are continuous via the middle plate top portion 23, form an upwardly convex V-shape as a whole. As shown in FIG. 7, an annular space portion S surrounded by the middle plate skirt portion 24 and the middle plate peripheral wall portion 21 is formed between them. In this embodiment, the height of the middle plate skirt portion 24 is set lower than the height of the middle plate peripheral wall portion 21. As a result, the middle plate bottom surface portion 19 is located lower than the lower end of the middle plate skirt portion 24.

[0032] In this embodiment, a plurality of second vertical ribs 26 extending vertically are formed around the entire periphery of the inner plate skirt portion 24. This improves the strength of the inner plate skirt portion 24.

[0033] In this embodiment, as shown in FIG. 1 and FIG. 7, the extending edge portion 25 extends outward from the lower end of the inner plate skirt portion 24. The extending edge portion 25 is formed around the entire circumference. The extending edge portion 25 is provided along a horizontal plane. When the inner plate 20 is accommodated in the container body 10, the extending edge portion 25 abuts against the main body step portion 111 of the container body 10. In this embodiment, the extending edge portion 25 abuts against the main body first step portion 111a of the main body step portion 111. In this way, the inner plate 20 is placed on the main body first step portion 111a in a state where the extending edge portion 25 and the main body first step portion 111a abut against each other. Then, the inner plate 20 covers the upper opening of the container body 10 when placed on the main body first step portion 111a.

[0034] 3. Lid The lid body 30 is fitted to the container body 10. When fitted to the container body 10, the lid body 30 covers the upper opening of the inner plate 20 placed on the container body 10. As shown in Figures 1 and 2, the lid body 30 has a top surface portion 34, a lid body top portion 33, a lid body peripheral wall portion 31, a stepped portion 32, an annular bottom portion 37, a lid body fitting portion 38, and a lid body flange portion 302. These are integrally formed.

[0035] As shown in Fig. 3, the top surface 34 is formed in a circular shape in a plan view. The main part of the top surface 34 is a flat surface along a horizontal plane. In this embodiment, a square-shaped recess 7 is formed in the center of the top surface 34, and the recess 7 is provided with a plurality of ventilation holes 2. The ventilation holes 2 are holes that serve as a passage for air, and steam generated from the contents contained in the inner plate 20, for example, during heating, is discharged through the ventilation holes 2.

[0036] The periphery of the top surface portion 34 is formed so as to protrude upward. The uppermost part of this protrusion constitutes the top portion 33 of the lid body.

[0037] The lid 30 also has a stepped portion 32 on the periphery of the top surface 34. The stepped portion 32 is formed in an inward stepped shape continuing from the lid top 33. That is, the stepped portion 32 is provided so as to descend in a stepped shape from the lid top 33 toward the inside. As shown in FIG. 7, the stepped portion 32 is formed in a shape corresponding to the shape of the inner plate top 23 and the inner plate step portion 211 of the inner plate 20.

[0038] In this embodiment, the stepped portion 32 has a first step portion 32a, a second step portion 32b, and a recessed portion 32c formed to be recessed downward. These are arranged in the order of the second step portion 32b, the recessed portion 32c, and the first step portion 32a from the outside to the inside. The second step portion 32b is formed narrower than the lid body top portion 33, and the first step portion 32a is formed wider than the lid body top portion 33. In addition, the second step portion 32b has a width approximately equal to that of the inner plate step portion 211, and the lid body top portion 33 also has a width approximately equal to that of the inner plate top portion 23. The height of the first step portion 32a and the height of the second step portion 32b are equal, and they are formed to be flush with each other (see FIG. 7).

[0039] In this embodiment, as shown in Fig. 8, the stepped portion 32 is formed to have a size corresponding to the bottom surface portion 9 of the container body 10. The diameter of the stepped portion 32 is set to be slightly larger than the diameter of the bottom surface portion 9 of the container body 10. Specifically, the inner diameter of the first stepped portion 32a (the inner diameter of the lower inner wall 32d of the stepped portion 32) is set to be slightly larger than the outer diameter of the bottom surface portion 9. Therefore, when stacking the packaging containers 1 (placing the container body 10 of another packaging container 1 on the top surface portion 34 of the lid body 30 of the packaging container 1), it is easy to position the packaging containers 1 relative to each other (see Fig. 8).

[0040] In this embodiment, as shown in FIG. 8, the lid ventilation section 3, which serves as an air passage, is formed in the stepped portion 32. In this embodiment, the lid ventilation section 3 has a lid first ventilation section 3a formed in the first stepped portion 32a and a lid second ventilation section 3b formed in the lower inner wall 32d. The lid first ventilation section 3a is recessed in a shallow groove shape at multiple locations (eight locations in this example) of the first stepped portion 32a so as to have a depth similar to that of the recessed section 32c. The lid second ventilation section 3b is recessed in a linear narrow groove shape along the top and bottom of the lower inner wall 32d so as to correspond to each of the multiple lid first ventilation sections 3a and communicate with the lid first ventilation sections 3a. By providing such a lid ventilation section 3, when the packaging containers 1 are stacked in multiple layers, even if steam generated during heating is discharged through the ventilation hole 2 in the top surface 34, the steam can be easily discharged to the outside through the main body ventilation section 4 of the upper packaging container 1 and the lid ventilation section 3 of the lower packaging container 1.

[0041] The lid peripheral wall 31 extends downward from the lid top 33. The lid peripheral wall 31 is formed to be slightly inclined outward as it extends downward. The inclination angle of the lid peripheral wall 31 is approximately the same as the inclination angle of the inner plate skirt portion 24. In addition, the height of the lid peripheral wall 31 is approximately the same as the height of the inner plate skirt portion 24. In this embodiment, the outer diameter of the lid top 33 is slightly larger than the outer diameter of the inner plate top 23, and in a state in which the lid 30 is fitted to the container body 10 while the inner plate 20 is placed thereon (hereinafter referred to as the "combined state"), the lid peripheral wall 31 is disposed along the inner plate skirt portion 24 so as to cover the inner plate skirt portion 24 from the outside.

[0042] In this embodiment, vertically extending linear rib portions 35 are formed all around the periphery of the lid peripheral wall portion 31. This can improve the strength of the lid peripheral wall portion 31. In this embodiment, as shown in Fig. 1, the linear rib portions 35 formed by the uneven shape are provided at a slight incline with respect to the vertical direction.

[0043] In this embodiment, the annular bottom portion 37 is formed in an annular shape at the lowermost portion of the lid peripheral wall portion 31. As shown in Fig. 7, the annular bottom portion 37 extends outward from the lower end of the lid peripheral wall portion 31 along a horizontal plane.

[0044] 1 and 7, in this embodiment, a lid body step portion 301 is formed that rises continuously in a step-like manner from the peripheral edge of the annular bottom portion 37. In the combined state, the lid body step portion 301 covers the main body second step portion 111b of the container body 10 from above.

[0045] The lid fitting portion 38 is provided above the lid step portion 301. The lid fitting portion 38 has an inner wall surface around the entire periphery, and this inner wall surface fits into (inner fit in this example) the main body fitting portion 14 of the container body 10. The lid fitting portion 38 has a shape corresponding to the main body fitting portion 14. It is preferable that the lid fitting portion 38 has a portion that is slightly inclined inward as it goes upward, at least in a part in the up-down direction.

[0046] 1 and 7, the lid flange portion 302 extends outward from an upper portion of the lid fitting portion 38. The lid flange portion 302 is disposed so as to follow the body flange portion 12 of the container body 10 in a state in which the lid 30 is fitted to the container body 10.

[0047] In this embodiment, as shown in Figs. 1 to 3, a lid knob 303 is formed on a part of the periphery of the lid flange 302. The lid knob 303 is formed so as to protrude outward. In this example, the lid knob 303 is formed in a semicircular shape in a plan view. In the illustrated example, a plurality of lid knobs 303 (two in this example) are provided at equal intervals.

[0048] 4. Combined state Next, a state in which the inner plate 20 is placed on the container body 10 and the lid body 30 is fitted thereto, that is, a combined state (see Figs. 2 and 7), will be described.

[0049] In this embodiment, as shown in Fig. 7, in the combined state, the inner plate skirt portion 24 is placed on the main body step portion 111. In this embodiment, the inner plate skirt portion 24 is placed on the main body first step portion 111a of the main body step portion 111. Also, in this embodiment, the inner plate skirt portion 24 is placed on the main body first step portion 111a with the extended edge portion 25 extending outward from its lower end portion along the main body first step portion 111a. In this state, when the lid body 30 is fitted to the container body 10 (the lid body fitting portion 38 is fitted to the main body fitting portion 14), the lid body top portion 33 abuts against the inner plate top portion 23 from above, and the inner plate skirt portion 24 is pressed from above against the main body step portion 111 (the main body first step portion 111a). Furthermore, in this embodiment, the extended edge portion 25 of the inner plate 20 is sandwiched between the annular bottom portion 37 of the lid body 30 and the main body step portion 111. This allows the adhesion between the main body step portion 111 and the extended edge portion 25 to be improved.

[0050] By increasing the adhesion between the main body step portion 111 and the extending edge portion 25 in the combined state, even if the packaging container 1 is tilted, most of the liquid contents such as soup contained in the container body 10 can be kept in the space portion S. In other words, it is possible to prevent the liquid contents contained in the container body 10 from leaking out beyond the contact point between the main body step portion 111 and the extending edge portion 25.

[0051] In this embodiment, the lid fitting portion 38 and the main body fitting portion 14 are fitted (inner fitted in this example) outside the contact portion between the main body step portion 111 and the extending edge portion 25. Therefore, even if a part of the liquid contained object leaks beyond the contact portion between the main body step portion 111 and the extending edge portion 25, it is possible to prevent the liquid object from leaking out of the container body 10 beyond the fitting portion between the lid fitting portion 38 and the main body fitting portion 14.

[0052] In addition, above the contact point between the main body step 111 and the extended edge 25, the stepped portion 32 of the lid 30 contacts the inner plate top 23 from above. At this time, in this embodiment, the lid top 33 contacts the inner plate top 23 from above, and the upper inner wall 32e between the lid top 33 and the second stepped portion 32b of the stepped portion 32 contacts the upper inner wall 212 between the inner plate top 23 and the inner plate step 211 in the inner plate peripheral wall 21 from the inside. Therefore, in the combined state, the lid top 33 and the inner plate top 23 contact each other over a wide range in the vicinity of the lid top 33 and the inner plate top 23. Therefore, even if a part of the liquid contained object leaks out beyond the contact point between the main body step 111 and the extended edge 25, it is possible to prevent the liquid from reaching the storage portion of the inner plate 20 beyond the contact area between the lid top 33 and the inner plate top 23.

[0053] Furthermore, in this embodiment, the first body step portion 111a and the second body step portion 111b of the container body 10 are formed to have different widths, and in addition, the inner plate top portion 23 and the inner plate step portion 211 of the inner plate 20 are formed to have different widths. In this way, the widths of the respective step portions are formed to be different at a plurality of positions having different heights from the bottom surface portion 9. This makes it possible to effectively prevent the contents in the container body 10 from leaking out or reaching the storage portion of the inner plate 20.

[0054] 5. Other embodiments Next, other embodiments of the packaging container 1 will be described.

[0055] (1) In the above embodiment, a configuration has been described as an example in which, when the lid 30 is fitted to the container body 10, the lid top 33 located at the uppermost part of the stepped portion 32 abuts against the inner plate top 23 from above. However, the present invention is not limited to such a configuration, and for example, a configuration in which the first stepped portion 32a of the stepped portion 32 abuts against the inner plate top 23 from above may also be used. In this case, it is preferable that the lower inner wall 32d of the stepped portion 32 abuts against the upper inner wall 212 of the inner plate peripheral wall 21 from the inside.

[0056] (2) In the above embodiment, the lid ventilation portion 3 that serves as an air passage is formed in the first step portion 32a. However, the present invention is not limited to such a configuration, and for example, the lid ventilation portion 3 does not necessarily have to be provided. In this case, the main body ventilation portion 4 does not necessarily have to be provided in the bottom portion 9 of the container main body 10.

[0057] (3) In the above embodiment, the first vertical rib 8 is formed around the entire periphery of the lid peripheral wall portion 31. However, the present invention is not limited to such a configuration, and for example, the first vertical rib 8 may be provided intermittently in the circumferential direction. Alternatively, the first vertical rib 8 may not be provided.

[0058] (4) In the above embodiment, a configuration has been described as an example in which the extending edge portion 25 of the inner plate 20 is sandwiched between the first body step portion 111a and the annular bottom portion 37 when the lid body 30 is fitted to the container body 10. However, the present invention is not limited to such a configuration, and for example, the lid body 30 may not have the annular bottom portion 37, and the first body step portion 111a and the extending edge portion 25 may simply abut against each other when the lid body 30 is fitted to the container body 10. In this case, the inner plate 20 may not have the extending edge portion 25, and the first body step portion 111a and the lower end portion of the inner plate skirt portion 24 may simply abut against each other.

[0059] (5) In the above embodiment, an example has been described in which the container body 10 is provided with four main body ventilation parts 4. However, the present invention is not limited to such a configuration, and the number of main body ventilation parts 4 may be five or more, or three or less.

[0060] (6) In the above embodiment, the eight lid ventilation parts 3 are provided in the lid 30. However, the present invention is not limited to such a configuration, and the number of lid ventilation parts 3 may be nine or more, or seven or less.

[0061] (7) In the above embodiment, a configuration has been described as an example in which the middle plate step portion 211 is formed narrower than the middle plate top portion 23. However, the present invention is not limited to such a configuration, and the middle plate step portion 211 and the middle plate top portion 23 may be formed to have the same width, or the middle plate step portion 211 may be formed to be wider than the middle plate top portion 23.

[0062] (8) The configurations disclosed in the above-described embodiments can be applied in combination with configurations disclosed in other embodiments, as long as no contradiction occurs. As for other configurations, the embodiments disclosed in this specification are merely examples in all respects. Therefore, various modifications can be made as appropriate within the scope of the present disclosure. [Industrial Applicability]

[0063] The technology disclosed herein can be used in packaging containers equipped with inner trays. [Explanation of symbols]

[0064] 1: Packaging container 3: Lid ventilation section 3a: First vent of the cover 3b: Second vent of the lid 4: Main body ventilation section 5: Inner plate ventilation section 7: Recess 8: Vertical ribs 9: Bottom part 10: Container body 11: Main body peripheral wall 12: Main body flange 19:Bottom part of inner plate 20: Medium plate 21: Middle plate peripheral wall part 23:Top of middle plate 24: Middle plate skirt part 25: Extended edge 30: Lid 31: Lid body peripheral wall part 32: Staircase part 32a: 1st staircase section 32b: 2nd staircase section 33:Top of lid body 34:Top section 37: Circular bottom 111: Main body step 111a: First step of main body 111b: Main body second step 211: Middle plate step part 301: Lid step 302: Lid flange 303: Lid knob S: Spatial part

Claims

1. A packaging container comprising a container body, a lid body fitted to the container body, and an inner plate disposed between the container body and the lid body, The container body has a main body peripheral wall portion having a main body step portion, and a main body flange portion extending outward from an upper portion of the main body peripheral wall portion, The inner plate has an inner plate peripheral wall portion and an inner plate skirt portion extending downward from an inner plate top portion provided on an upper portion of the inner plate peripheral wall portion to form a space portion between the inner plate peripheral wall portion and the inner plate skirt portion, The lid body has a top surface portion, a lid body peripheral wall portion extending downward from a lid body top portion provided on a peripheral edge of the top surface portion, a ring-shaped bottom portion formed in a ring shape at a lower portion of the lid body peripheral wall portion, and a plurality of rib portions formed on the lid body peripheral wall portion, The inner plate peripheral wall portion has an upper inner wall extending downward from the inner plate top portion and an inner plate step portion extending inward from the upper inner wall, The lid has an inward stepped portion continuing from a top portion of the lid, the stepped portion includes an upper inner wall extending downward from the top of the lid body and a step extending inward from the upper inner wall, Each of the rib portions is formed linearly extending vertically, and a plurality of the rib portions are formed at equal intervals around the entire circumference of the lid peripheral wall portion, A packaging container in which, in a placed and fitted state in which the middle dish skirt portion is placed on the main body step portion and the lid body is fitted into the container body, the top of the lid body abuts against the top of the middle dish from above, the upper inner wall abuts against the upper inner wall from the inside, and the main body step portion and the annular bottom portion clamp the portion of the middle dish that is outer than the middle dish top, and the lid body and the container body are fitted together outside the point clamped between the main body step portion and the annular bottom portion.

2. 2. The packaging container according to claim 1, wherein each of the ribs is formed continuously across the lid peripheral wall and the lid top.

3. 3. The packaging container according to claim 1, wherein the inner plate peripheral wall portion further has recessed portions formed so as to be recessed downward at a plurality of locations of the inner plate step portion.

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